#VU27588 Resource exhaustion in Cisco Firepower Threat Defense (FTD) - CVE-2020-3189
Vulnerability identifier: #VU27588
Vulnerability risk: High
CVSSv4.0: 6.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber]
CVE-ID:
CWE-ID:
CWE-400
Exploitation vector: Network
Exploit availability: No
Vulnerable software:
Cisco Firepower Threat Defense (FTD)
Hardware solutions /
Security hardware applicances
Vendor: Cisco Systems, Inc
Description
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to application does not properly control consumption of internal resources in the VPN System Logging functionality. A remote attacker can create or delete a VPN tunnel connection, which could leak a small amount of system memory for each logging event, trigger resource exhaustion and perform a denial of service (DoS) attack.
Mitigation
Vendor recommends to update the Cisco FTD Software Release to version 6.2.3.16 (June 2020), 6.3.0.6 (future release), 6.4.0.9 (May 2020), 6.5.0.5 (future release).
Vulnerable software versions
Cisco Firepower Threat Defense (FTD): 6.1.0, 6.2.0, 6.2.1, 6.2.2, 6.2.3
External links
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ftd-dos-Rdpe34sd8
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.
